Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Positioning and connecting method for steel blade angle and prefabricated concrete open caisson duct piece
The invention discloses a positioning and connecting method for a steel blade angle and a prefabricated concrete open caisson segment. The positioning and connecting method comprises the following steps that the steel blade angle is erected on a temporary supporting pad and temporarily supported; concrete is poured into the cavity of each steel blade angle; after maintenance is completed, the temporary supports are dismantled; the prefabricated pipe piece is hoisted to the position above the steel blade angle, and a positioning hole in the bottom of the prefabricated pipe piece and a positioning pin shaft on a top plate of the steel blade angle are installed in an aligned mode; waterproof mortar is poured at the joint between the bottom of the prefabricated pipe piece and the steel blade angle top plate; longitudinal bolts are installed between the prefabricated pipe pieces and the steel blade corners, and pre-tightening force is applied; through long steel plates are embedded in the two side faces of the bottom of the prefabricated pipe piece correspondingly, and the through long steel plates on the two sides are welded to the steel blade corners through shear keys and stiffening plates. The method has the advantages that the steel blade angle replaces a concrete blade angle, the strength of a steel structure is greatly improved compared with that of concrete, and the combined action of axial force and internal and external bending moments in construction can be borne; the positioning pin shaft is arranged at the corner top of the steel blade, and the positioning problem of the prefabricated segment is solved.
本发明公开了一种钢刃角与预制混凝土沉井管片的定位及连接方法，包括以下步骤：将钢刃角架设于临时支垫上并进行临时支撑；于各钢刃角的腔体内灌注混凝土；完成养护后，拆除各临时支撑；将预制管片吊装至钢刃角上方，并将预制管片底部的定位孔与钢刃角顶板上的定位销轴对位安装；在预制管片底部与钢刃角顶板之间的接缝处浇筑防水砂浆；在预制管片与钢刃角之间安装纵向螺栓并施加预紧力；预制管片的底部两侧面分别预埋有通长钢板，且两侧通长钢板通过剪力键和劲板同钢刃角焊接。本发明的优点是：钢刃角替代混凝土刃角，钢结构强度较混凝土有很大提升，可以承受施工中的轴力和内外弯矩的联合作用；钢刃角顶设置定位销轴，解决了预制管片的定位问题。
Positioning and connecting method for steel blade angle and prefabricated concrete open caisson duct piece
The invention discloses a positioning and connecting method for a steel blade angle and a prefabricated concrete open caisson segment. The positioning and connecting method comprises the following steps that the steel blade angle is erected on a temporary supporting pad and temporarily supported; concrete is poured into the cavity of each steel blade angle; after maintenance is completed, the temporary supports are dismantled; the prefabricated pipe piece is hoisted to the position above the steel blade angle, and a positioning hole in the bottom of the prefabricated pipe piece and a positioning pin shaft on a top plate of the steel blade angle are installed in an aligned mode; waterproof mortar is poured at the joint between the bottom of the prefabricated pipe piece and the steel blade angle top plate; longitudinal bolts are installed between the prefabricated pipe pieces and the steel blade corners, and pre-tightening force is applied; through long steel plates are embedded in the two side faces of the bottom of the prefabricated pipe piece correspondingly, and the through long steel plates on the two sides are welded to the steel blade corners through shear keys and stiffening plates. The method has the advantages that the steel blade angle replaces a concrete blade angle, the strength of a steel structure is greatly improved compared with that of concrete, and the combined action of axial force and internal and external bending moments in construction can be borne; the positioning pin shaft is arranged at the corner top of the steel blade, and the positioning problem of the prefabricated segment is solved.
本发明公开了一种钢刃角与预制混凝土沉井管片的定位及连接方法，包括以下步骤：将钢刃角架设于临时支垫上并进行临时支撑；于各钢刃角的腔体内灌注混凝土；完成养护后，拆除各临时支撑；将预制管片吊装至钢刃角上方，并将预制管片底部的定位孔与钢刃角顶板上的定位销轴对位安装；在预制管片底部与钢刃角顶板之间的接缝处浇筑防水砂浆；在预制管片与钢刃角之间安装纵向螺栓并施加预紧力；预制管片的底部两侧面分别预埋有通长钢板，且两侧通长钢板通过剪力键和劲板同钢刃角焊接。本发明的优点是：钢刃角替代混凝土刃角，钢结构强度较混凝土有很大提升，可以承受施工中的轴力和内外弯矩的联合作用；钢刃角顶设置定位销轴，解决了预制管片的定位问题。
Positioning and connecting method for steel blade angle and prefabricated concrete open caisson duct piece
一种钢刃角与预制混凝土沉井管片的定位及连接方法
HUANG CHANGFU (Autor:in) / XING RUXIANG (Autor:in) / NIU JUNTAO (Autor:in) / CAO ZHENJIE (Autor:in) / ZHANG YANWEI (Autor:in) / LIU TAO (Autor:in) / YU LONG (Autor:in)
05.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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